Feat: Port server to indexer framework

[hopeyen]

Problem statement

Welp, I've reinvented the wheel of indexer service once again unnecessarily.

Expectation proposal

Port subfile service to use https://github.com/graphprotocol/indexer-rs/ as the work on indexer framework was finished.
This way we don't need to explicitly add TAP manager to the service, wait til later to handle TAP receipts when serving queries.